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Income Taxes (Tables)

9 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Summary of Changes in Unrecognized Tax Benefits

Changes in unrecognized tax benefits are summarized as follows for the nine months ended June 30, 2018.  

(In millions)
Balance at October 1, 2017	$	194
Increases related to positions taken on items from prior years		3
Decreases related to positions taken on items from prior years		(2	)
Increases related to positions taken in the current year		8
Settlements		(1	)
Lapse of statute of limitations		(1	)
Balance at June 30, 2018	$	201

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- Definition

Tabular disclosure of the change in unrecognized tax benefits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 55
-Paragraph 217
-URI http://asc.fasb.org/extlink&oid=109238393&loc=d3e36027-109320

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319

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